﻿using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace ConsoleApp2
{
    class StringUtil
    {
        public static string a { get; set; }

        public static void G()
        {
            if (string.IsNullOrWhiteSpace(a))
            {
                Console.WriteLine("" + true);
            }
            else
            {
                Console.WriteLine("" + false);
            }
        }

    }
}
